Which of the following is NOT a model of the solar system? a. Heliocentric model c. Nebula model b. Geocentric model d. all of the above are solar system models Please select the best answer from the choices provided A B C D

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.